Here is the, Welcome to the Workshop: How do I / Where do I / What do I / answers are here post, first post in the Workshop forum

Most of us get washer from Micro Fastners and rod from any good knife supply, I use Texas Knife.

Nice work on the Otto. If you go to 1k on wet & dry, alternating spine to edge then heel to toe, you can get a shiny finish, then hand buff with a good metal polish. The 3m that Outback posted about is good stuff.

If you want a satin, after the 1k do one directional spine to edge with a new piece of 800 wet and dry, using a shot of WD40 or any thin oil. That will give you a nice satin. One direction only or you get swirs.

Do all your sanding and polishing before you hone or you will ruin the edge, you might be able to touch it up on the finish hone.

But when sanding I kill the edge with a 1k diamond file for safety.